For the answer to the question above asking how many more book does the other grade need to read to have the same rate?
I think the answer here is the 7 grader needs to read 94 more books in order to catch up with 6 grade.

6 0

3 years ago

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The equation cos−1 = x can be used to determine the measure of angle BAC.

Sergio [31]

we know that

in the right triangle ABC

the value of cosine of angle x is equal to

$cos(x)=\frac{AC}{AB}$

we have

$AC=3.4\ cm\\AB=10\ cm$

substitute the values

$cos(x)=\frac{3.4}{10}=0.34$

Find the measure of angle x

$x=cos(x)^{-1} =arc\ cos(0.34)=70.12\°$

Round to the nearest whole degree

$x=70\°$

therefore

the answer is

$70\°$

5 0

3 years ago

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Which of the following is the equation of a circle with a radius of 10 cm and center at (–3, 6)?

vlabodo [156]

The equation of a circle is (x - h)² + (y - k)² = radius² where (h, k) is the ordered pair for the center.

(x - (- 3))² + (y - 6)² = 10²

(x + 3)² + (y - 6) = 100

5 0

3 years ago

Given a= -3, b= 4 and c= -5, evaluate ab + C. -4 -17 07

kirill115 [55]

Answer:

a= -3, b= 4 and c= -5

ab + c = (-3)4+(-5) = -12 -5 = -17

4 0

3 years ago

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